'Date:
Period:
LAB: Latitude and Longitude
Introduction:
system is needed to
In order to navigate and study different places on Earth, a universal
surface- The system created
allow people all over thi world to locate exact positions on Earth's
;i;;. and descriue positions on earth is latitude and longitude. This method is used by all
nations.
Objective:
the coordinate system
ln this lab you will learn how to determine positions on Earth using
used in navigation and how
of latitude and longitude. You will also learn how Polaris is
longitude is used to calculate time zones'
Vocabulary:
9
Latitude:
Polaris:
Parallel:
Longitude:
Meridian:
Coordinate SYstem:
ap 22
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Procedure B: World Latitude and Longitude
1.
Complete the following charts using the world map provided (Map 2Z).Estimate the
latitude and longitude of each location to the nearest degree.
Chicago
Londoii
Bombay
Canberra
Rio de Janeiro
Vancouver
Tokyo
Moscow
Cape Town
Anchorage
{,
3
Procedure C: New York State Latitude and Longitude
1.
Use the New York State map on page 3 of your Earth Science Reference Tables to
complete the chart below. Be sure to use degrees and minutes.
42" 25',N
76"
30',w
780
50'w
Mount MarcY
42" 45',N
42"
50',
73" 47',W
Syracuse
75" 55',
w
Slide Mountain
43" 1o',N
44" 40',N
EImira
79" 01',w
73" 2,5') W
42" 05'
Procedure D: Measuring Distance
rt:.:t:?.:t 1. Use the New York State map on page 3 of your Eatrth Science R'."f"rrn", Tables to
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estimate the distances between the following locations'
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A.
What is the straight-line distance from Watertown to Old Forge?
Answer in Miles:
B.
What is the straight-line distance from Elmira to Ithaca?
Answer in
c.
Answer in Kilometers:
Miles:
Answer in Kilometers:
what is the straight-line distance from Niagara Falls to Buffalo?
Answer in
Miles:
Answer in Kilometers:
Procedure E: World Time Zones
1.
)
Use the world map provided (Map 22) to answer the following questions. An
example has been provided to show you how to do this'
Example: If it is 12 PM (noon) Greenwich Mean Time, what is the time at location A?
)
\/
Step 1:
Step 2:
Step 3:
Step 4:
Point A is at 90" E longitudes
Location A is 90o away from the prime Meridian'
Earth rotates atll"ftt.
90o + 15o/hr:6 hrs
Stip 5: Location A is East of the Prime Meridian and time increases
you head east.
Step 6: 12 PM (noon) + 6 hrs: 6 PM
as
Therefore: It is 6PM at location A when it is noon in Greenwich.
A. If it is 12 PM (noon) Greenwich
Mean Time, what is the time at location B?
SHOW YOI'R WORK.
B. If it is 12 PM (noon) Greenwich
sHow YouR woRK.
Mean Time, what is the time at location
C?
--:\a
b/I
C. If it is 12 pM (noon) Greenwich
Mean Time, what is the time at Iocation D?
SHOW YOIJR WORK,
D. If it is 10 AM
Greenwich Mean Timg what is the time at Iocation E?
SHOW YOIJR WORK.
Discussion Questions: (Answer in complete sentences)
l.
What is the largest possible latitude?
2.
What is the tatitude of the North Pole?
3.
Explain why two circ,les of latitude nevsr touch'
4. you are in a boat crossing the prime Meridian. The altitude of Polaris is 50 degrees.
Explain how you know
longitude.
5.
G
boat's location is 50 degrees Norlh latitude and 0 degrces
What is the maximum number of degrees of longitude possible?
6.
at the North Pole is 0 miles'
Explain whythe distance between two meridians
7.
(Numbered 39 and 40)
Answer the two multiple-choice questions below.
L{
)Wffi
and longitude of ftve
the map belovr, which shows the latitude
B.ru your answers to questions 39 and 40 on
I -- observers; A, B' C, D, and E, on Earth'
i
100 N
Equator
104
lll/hat is the altitude
"b;;;
(1) 0"
)
A"
(2) I0"
ol
Polaris (the Nortlr Star)
northern horizon fqr otserver A?
(3) 80'
(4).90'
s
40 \\&ich two observers would be experieneing the
same aPParent solar time?
O)AandC
(2) B and C
(3) B and E
(4) D. and E
),(
.-g
Conclusion:
positions on Earth.
1. Describe how latitude and longitude coordinates are used to locate
6